micromillimetre /mī-krə-milˈi-mē-tər/

1. One millionth of a millimetre (now nanˈomētre; obsolete)
2. One thousandth of a millimetre (non-standard)

• wk
• WL
• WLA
• WLTM
• Wm
• WMD
• WML
• WMO
• WNW
• w/o
• wo
• WO
• woad
• woaded
• woads
• wobbegong
• wobbegongs
• woodennesses
• wooden overcoat
• wooden pear
• wooden pears
• wooden spoon
• wooden spoons
• wooden tongue
• woodentop